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#Authors: Oulis Evangelos, Oulis Nikolaos, Drosos Katsibras
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#===================================================================
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#!/usr/bin/env python
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import time
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import serial
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import requests
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import json
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# Open file to configure communication with server.
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with open('/home/pi/project/data.json', 'r') as json_file:
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json_data = json_file.read()
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if json_data != "" and json_data != None:
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server_par = json.loads(json_data.replace('\n','').replace(' ',''))
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server_ip = server_par['ip']
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server_port = server_par['port']
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if server_ip != None and server_port != None:
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API_ENDPOINT = 'http://' + server_ip + ':' + server_port + '/parkingStatus'
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ser = serial.Serial(
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port='/dev/ttyACM0',
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baudrate = 9600,
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parity=serial.PARITY_NONE,
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stopbits=serial.STOPBITS_ONE,
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bytesize=serial.EIGHTBITS,
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timeout=1
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)
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counter=0
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prev_status = ser.readline()
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while 1:
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park_status = ser.readline()
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park_status_data = str(park_status).split("#")
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parkingCode = park_status_data[0].replace('b\'','')
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parkingStatus = park_status_data[1].replace('\\r\\n\'', '')
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try:
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if park_status != prev_status:
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if parkingStatus == "1":
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print("parking reserved. RESPONSE :", r.status_code, "\n")
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elif parkingStatus == "0":
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print("parking not reserved. RESPONSE : ", r.status_code, "\n")
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data = """{"no":""" + parkingCode + ""","status":""" + parkingStatus + """}"""
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r = requests.post(url = API_ENDPOINT, data = data)
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except NameError:
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print("**Not already prev variable.\n")
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prev_status = park_status
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else:
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print("Create a *.json configuration like: {'ip' : 'xxx.xxx.xxx.xxx', 'port': 'xxxx'}")
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